The beginning of a long and painful journey

[Rawpain]

Thanks neffer.
I have not been posting because not much has changed. I have had a few good days with the kids and had nearly a whole week without talking or thinking hardly at all about W. Then she contacted me on Friday she said I was to pick S up on from school that night and it was my W/E to have the kids so It is my Friday to have them. This just came out of the blue because for the last month we have said if parent1 has them Friday Parent2 has them Saturday and Sunday and then we swap the following week. W said she has a girly night planned this Friday so can we start next week. I told her We have already been doing this for a month so why would it be different plus I already have plans and it is not my Friday. She txt FINE!
I should of left it there but I text back saying that she can not randomly just change dates. If she had wanted me to have the kids this Friday then I might of said yes if she had given me notice. She moved off the subject from the kids stating that she needs money as she can not afford her bills. I was very angry at this. So I did not respond until I had cooled down. I stated the facts that money is going to be tight for us both and since I have agreed to pay all the childcare that there is not going to be much money left and anything that remains will be saved up ready for my S uniform next year and his holiday club for summer. I informed her that I am not using any of the kids benefit to pay any of my bills or use any of it for myself and it is going directly into an account I have set up for them. She still tried telling me that the children will suffer and she can not pay her bills. I reminded her that I am single handedly paying back all our joint debts and fines that she is not contributing too. I also stated that just as an observation not criticism that every time I have seen her over the last month that she has had new clothes on she has had her beauty appointments and she has just been on holiday abroad. An pointed out that next month might be better for her.
W is on a higher income than me too.
I also asked her why she thought her financial trouble had anything to do with me?
She did not respond.
Saturday she stated that we need to have a schedule in place for the kids. I made one when she left and we sent it back and forth until we agreed upon it. I did her a copy and mine is stuck on my freezer. Its like she has fully lost the plot. I asked her to put a draft schedule together and I will look at it and get back to her and have left it at that.
She seems to be getting more irrational and bonkers by the day.

Should I or could I of done anything differently?